xref: /netbsd-src/crypto/external/bsd/heimdal/dist/lib/roken/swab.c (revision d3273b5b76f5afaafe308cead5511dbb8df8c5e9)
1*d3273b5bSchristos /*	$NetBSD: swab.c,v 1.2 2017/01/28 21:31:50 christos Exp $	*/
2ca1c9b0cSelric 
3ca1c9b0cSelric /*
4ca1c9b0cSelric  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
5ca1c9b0cSelric  * (Royal Institute of Technology, Stockholm, Sweden).
6ca1c9b0cSelric  * All rights reserved.
7ca1c9b0cSelric  *
8ca1c9b0cSelric  * Redistribution and use in source and binary forms, with or without
9ca1c9b0cSelric  * modification, are permitted provided that the following conditions
10ca1c9b0cSelric  * are met:
11ca1c9b0cSelric  *
12ca1c9b0cSelric  * 1. Redistributions of source code must retain the above copyright
13ca1c9b0cSelric  *    notice, this list of conditions and the following disclaimer.
14ca1c9b0cSelric  *
15ca1c9b0cSelric  * 2. Redistributions in binary form must reproduce the above copyright
16ca1c9b0cSelric  *    notice, this list of conditions and the following disclaimer in the
17ca1c9b0cSelric  *    documentation and/or other materials provided with the distribution.
18ca1c9b0cSelric  *
19ca1c9b0cSelric  * 3. Neither the name of the Institute nor the names of its contributors
20ca1c9b0cSelric  *    may be used to endorse or promote products derived from this software
21ca1c9b0cSelric  *    without specific prior written permission.
22ca1c9b0cSelric  *
23ca1c9b0cSelric  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24ca1c9b0cSelric  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25ca1c9b0cSelric  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26ca1c9b0cSelric  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27ca1c9b0cSelric  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28ca1c9b0cSelric  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29ca1c9b0cSelric  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30ca1c9b0cSelric  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31ca1c9b0cSelric  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32ca1c9b0cSelric  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33ca1c9b0cSelric  * SUCH DAMAGE.
34ca1c9b0cSelric  */
35ca1c9b0cSelric 
36ca1c9b0cSelric #include <config.h>
37ca1c9b0cSelric #include <krb5/roken.h>
38ca1c9b0cSelric 
39ca1c9b0cSelric #ifndef HAVE_SWAB
40ca1c9b0cSelric 
41ca1c9b0cSelric ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
swab(char * from,char * to,int nbytes)42ca1c9b0cSelric swab (char *from, char *to, int nbytes)
43ca1c9b0cSelric {
44ca1c9b0cSelric      while(nbytes >= 2) {
45ca1c9b0cSelric 	  *(to + 1) = *from;
46ca1c9b0cSelric 	  *to = *(from + 1);
47ca1c9b0cSelric 	  to += 2;
48ca1c9b0cSelric 	  from += 2;
49ca1c9b0cSelric 	  nbytes -= 2;
50ca1c9b0cSelric      }
51ca1c9b0cSelric }
52ca1c9b0cSelric #endif
53